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Ocular Anatomy > Anatomic Directions and Planes > Flashcards

Anatomic Directions and Planes Flashcards

1
Q

Anterior or ventral

A

Toward the front

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2
Q

Posterior or dorsal

A

Toward the back

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3
Q

Superior or cranial

A

Toward the head

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4
Q

Inferior or caudal

A

Away from the head

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5
Q

Medial

A

Toward the midline

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6
Q

Lateral

A

Away from the midline

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7
Q

Proximal

A

Near the point of origin

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8
Q

Distal

A

Away from the point of origin

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9
Q

Sagittal Plane

A

Vertical plane running from anterior to posterior locations. Dividing the structure into right and left sides.

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10
Q

(Median) Midsagittal Plane

A

A sagittal plane through the midline. Dividing the structure into right and left halves.

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11
Q

Coronal or frontal plane

A

Vertical plane running from side to side, dividing the structure into anterior and posterior parts.

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12
Q

Transverse plane

A

Horizontal plane dividing the structure into superior and inferior parts.

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13
Q

Anatomic position

A

Patient standing upright.
Head, eye gaze, and toes are all directed forward.
Arms are relaxed and to the side with palms facing forward.
Lower limbs are close together with the feet parallel.

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14
Q

Supine

A

Laying down, face upward.

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15
Q

Prone

A

Face downward.

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16
Q

External

A

Farther from the center of an organ.

17
Q

Internal

A

Nearer the center of an organ.

18
Q

Rostral

A

Often used instead of anterior when describing parts of the brain…towards the beak.

19
Q

Bilateral

A

Referring to paired structures

20
Q

Unilateral

A

Occurring on one side only.

21
Q

Ipsilateral

A

Occurring on the same side of the body as another structure.

22
Q

Contralateral

A

Occurring on the opposite side of the body relative to another structure.

23
Q

Abduction

A

Moving away from the median plane in the frontal plane.

24
Q

Adduction

A

Moving toward the median plane in the frontal plane.

25
Q

Elevation

A

Moving a body part superiorly.

26
Q

Depression

A

Moving a body part inferiorly.

27
Q

What are the 2 principal planes of the eye?

A

Equatorial plane and Meridional plane.

28
Q

Equatorial plane

A

lies midway between the anterior and posterior poles of the eye and is perpendicular to the meridional plane.

29
Q

Meridional plane

A

passes through the anterior and posterior poles of the eye. The meridional plane may be horizontal, vertical or oblique; however it must intersect the anterior and posterior poles.

Sagittal planes are parallel to meridional planes but do not pass through the anterior and posterior poles.

30
Q

Sclerad

A

Towards the sclera.

31
Q

Vitread

A

Towards the vitreous humor.

Ocular Anatomy (1 decks)

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